In mammals, fish, insects and plants
This playlist covers the following aspects of gas exchange:
Mammals (humans): Structure of lungs, including the tissues and specialised cells involved (OCR), how ventilation works, how gas exchange is maximised.
Spirometry - How spirometers work, interpreting the graphs and calculating breathing rate, and oxygen consumption
Fish and Insects: Structure of the gas exchange systems and how they function to carry out efficient gas exchange. Including all the required A level terminology.
Plants: Structure and adaptations of leaves and the mechanism of stomatal opening.
Just wanted to say a huge thank you to you! Your videos helped me so much, making the content actually make sense and giving me so much more confidence going into exams. I managed to get an A* yesterday and that definitely wouldn’t have happened without you!! HC (Summer ‘21 student)
I'm a qualified biology teacher and online tutor who makes videos on A level biology topics which are clear in their explanations, straightforward in their format and mark-earning in their exam question hints.
I LOVE my subject! But I also know that many A level students want to 'know what they need to know' and need help to unlock the marks in the exams, so I have formatted my videos to be straightforward, clear and pacy. They may not be 'beautiful' (I am no techy!) but the content is high quality.
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Frequently Asked Questions
Seeing as you've decided to invest this much in my tuition, can I just check it doesn't make sense for you to buy one of my Playlist Bundles instead?
The Year 1 (AS) Playlist Bundle gives you ALL the videos that cover the first year of the course for AQA and OCR A for £50 for a year's subscription (full price). These will cover the main AS content, at least, for every exam board.
The Year 1 & Year 2 Playlist Bundle gives you ALL the videos that cover the content for the whole of the AQA and OCR A courses for £100 for a year's subscription (full price). These will cover the majority of the content for any other exam board.
Both of these bundles are ridiculous value for money 😁, being equivalent to 1 or 2 hours of private tuition...